Explanation for Question 23 From the Reading Section on the 2019 October Sat
Question 23 asks which statement best describes the reasoning that Davies and gambling used 2 to reach their main conclusion. So let's look into the passage at 3 what that main conclusion was and what led them to it. 4 And we can find evidence of this starting in line 14. 5 It says when the pear compared a much improved plant fossil record with evidence 6 of how river changes or rivers changed very long ago, 7 the transition matched up. So that's kind of how they reached their conclusion. 8 They're comparing these fossil records. And then this is their conclusion in the next 9 couple of lines. It says as soon as the plant's got a foothold on 10 land and rooted vegetation started, they changed the landscape. 11 Basically plants engineered that landscape as they evolved. 12 So like I just said, this is their conclusion. 13 And the second part, and this is how they reached it, 14 this first part. 15 So the main thing here that they're observing is that the transitions 16 between, or the transitions of the plant fossils and of 17 the rivers changing match up. 18 So they occurred at relatively the same time. 19 So let's look here at the answer choices and see which one conveys that 20 idea of happening at the same time. If we look at answer choice, 21 it says the reshaping of rivers preceded the appearance of rooted vegetation. 22 So it is likely through the reshaping of rivers resulted in rooted vegetation. 23 This is going to be incorrect because preceded would indicate that 24 ...